JOURNAL ARTICLE
MULTICENTER STUDY
RANDOMIZED CONTROLLED TRIAL

No difference between intra-articular injection of hyaluronic acid and placebo for mild to moderate knee osteoarthritis: a randomized, controlled, double-blind trial

Walter van der Weegen, Jorgen A Wullems, Ellis Bos, Hub Noten, Rogier A M van Drumpt
Journal of Arthroplasty 2015, 30 (5): 754-7
25548079
The main goal of our study was to examine the effectiveness and safety of Fermathron plus, a specific brand of hyaluronic acid (HA), in patients with mild to moderate knee osteoarthritis. In a randomized, controlled, double-blind trial, 196 patients with symptomatic knee osteoarthritis (mean age ± SD, 59.4 ± 9.9 years, Kellgren-Lawrence grade 1-3) were given either 3 weekly intra-articular injections of HA or saline (placebo). Although pain and functional scores (WOMAC scale) improved significantly from baseline up to 6 months, HA was not superior to placebo at any follow-up (VAS pain 50 m walking from 56.4 to 38.1, P < .001, and 58.2 to 39.6, P < .001, respectively). No subgroup analysis resulted in superior outcomes. No serious adverse events were noticed.

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